Abstract: A cooling system for a nuclear plant main Control Room Habitability System that employs a vortex tube interposed between a compressed air supply and the control room. The relatively cold air output from the vortex tube is fed into the control room or the electrical equipment room while the relatively hot air exiting the vortex tube is exhausted to the atmosphere.

Abstract: A data processing system includes client workstations, mass storage devices, input-output peripherals, and a server subsystem. The server subsystem includes a security server that accepts user information from a workstation and grants a security ticket to the workstation in response to the user's authorization level. The server subsystem also includes a volume manager that controls object storage to, and retrieval from, the mass storage subsystem. The volume manager caches objects related to a requested object. A domain server maintains a server map relating server names to physical network addresses, a volume map relating volume names to a corresponding volume manager, and a family map relating volume family names to a corresponding volume manager.